Artificial stone



FIG. 1 is a top view of the artificial stone according to the design.

FIG. 2 is a bottom view of the design.

FIG. 3 is a right end side view of the design.

FIG. 4 is a front view of the design.

FIG. 5 is a left end view of the design; and,

FIG. 6 is a rear view of the design.

The design is the features of the artifical stone shown in the drawings. The most significant feature of the design is the peripheral shape of the stone. 

The ornamental design for artificial stone, as shown and described. 